////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2009 Daniel F. Hanson
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
////////////////////////////////////////////////////////////////////////////////

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content.Pipeline;
using Microsoft.Xna.Framework.Content.Pipeline.Serialization.Compiler;

namespace SilverLua.Pipeline
{
   [ContentTypeWriter]
   public class ScriptWriter : ContentTypeWriter<ScriptBinary>
   {
      protected override void Write(ContentWriter output, ScriptBinary value)
      {
         // File signature
         output.Write('S');
         output.Write('L');
         output.Write('U');
         output.Write('A');

         // Major version
         output.Write(1);
         // Minor version
         output.Write(0);
         
         output.Write(value.Chunks.Length);
         
         foreach (Chunk chunk in value.Chunks)
         {
            output.Write(chunk.RegisterCount);
            output.Write(chunk.Instructions.Length);
            foreach (Instruction instr in chunk.Instructions)
            {
               output.Write((int)instr.Opcode);
               output.Write(instr.OperandTypes.Length);
               for (int i = 0; i < instr.OperandTypes.Length; ++i)
               {
                  output.Write((int)instr.OperandTypes[i]);
                  output.Write(instr.OperandValues[i]);
               }
            }
            
            output.Write(chunk.Upvalues.Length);
            foreach (Upvalue upvalue in chunk.Upvalues)
            {
               output.Write((int)upvalue.Type);
               output.Write(upvalue.Register);
            }

            output.Write(chunk.Strings.Length);

            foreach (string stringEntry in chunk.Strings)
            {
               output.Write(stringEntry);
            }
         }
      }

      public override string GetRuntimeReader(TargetPlatform targetPlatform)
      {
         return typeof(ScriptReader).AssemblyQualifiedName;
      }
   }
}
